algebra: OPTIONS


SYNTAX-CHECK

  New instructions entered via INSERT are checked by default
  (ALGEBRA-SYNTAX-CHECK) on correct syntax as part of a
  sequential algebra instruction list, which can in principle
  be executed entirely within the ALGEXn routines.

  The instruction codes for RETURN, GOTO, ARGUMENT and CALL are
  processed at a higher level. Such instruction codes are used
  for instance when addressing elements of matrices. These codes
  are accepted only if you have set PROCEDURE-SYNTAX-CHECK.

  You may change also switch syntax checking off altogether.

IGNORE-UNDERFLOW

  By default, exponentials of negative numbers less than -88
  are signaled as underflows. Formulae in which they occur are
  not evaluated.

  To have such exponentials set to 0 and to continue evaluating
  the formula, the IGNORE-UNDEFLOW option is used.

  When IGNORE-UNDERFLOW is in effect, underflows are not counted.

Keyword index. Formatted on 10/11/98.